EP1804451A3 - Apparatus and method for determining pilot pattern in a broadband wireless access communication system - Google Patents

Apparatus and method for determining pilot pattern in a broadband wireless access communication system Download PDF

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Publication number
EP1804451A3
EP1804451A3 EP06124823A EP06124823A EP1804451A3 EP 1804451 A3 EP1804451 A3 EP 1804451A3 EP 06124823 A EP06124823 A EP 06124823A EP 06124823 A EP06124823 A EP 06124823A EP 1804451 A3 EP1804451 A3 EP 1804451A3
Authority
EP
European Patent Office
Prior art keywords
pilot pattern
method
communication system
wireless access
apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06124823A
Other languages
German (de)
French (fr)
Other versions
EP1804451B1 (en
EP1804451A2 (en
Inventor
Jong-Hyeuk Lee
Myeon-Kyun Cho
Won-Kyu Paik
Jong-Soo Seo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI U
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Industry Academic Cooperation Foundation Yonsei University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR20050132859A priority Critical patent/KR100872043B1/en
Application filed by Samsung Electronics Co Ltd, Industry Academic Cooperation Foundation Yonsei University filed Critical Samsung Electronics Co Ltd
Publication of EP1804451A2 publication Critical patent/EP1804451A2/en
Publication of EP1804451A3 publication Critical patent/EP1804451A3/en
Application granted granted Critical
Publication of EP1804451B1 publication Critical patent/EP1804451B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0222Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency

Abstract

An apparatus and method for determining a pilot pattern in a Broadband Wireless Access (BWA) communication system are provided. In the pilot pattern determining method, an Orthogonal Frequency Division Multiplexing (OFDM) demodulator generates frequency-domain data by fast-Fourier-transform (FFT)-processing a received signal. A pilot pattern decider calculates a coherence bandwidth and a coherence time using subcarrier values received from the OFDM demodulator, and selects one of a plurality of pilot patterns according to the ratio of the coherence bandwidth to the coherence time.
EP06124823.3A 2005-12-29 2006-11-27 Apparatus and method for determining pilot pattern in a broadband wireless access communication system Active EP1804451B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20050132859A KR100872043B1 (en) 2005-12-29 2005-12-29 Apparatus and method for determining pilot pattern in broadband wireless access communication system

Publications (3)

Publication Number Publication Date
EP1804451A2 EP1804451A2 (en) 2007-07-04
EP1804451A3 true EP1804451A3 (en) 2012-12-05
EP1804451B1 EP1804451B1 (en) 2019-01-02

Family

ID=37998360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06124823.3A Active EP1804451B1 (en) 2005-12-29 2006-11-27 Apparatus and method for determining pilot pattern in a broadband wireless access communication system

Country Status (3)

Country Link
US (1) US7792201B2 (en)
EP (1) EP1804451B1 (en)
KR (1) KR100872043B1 (en)

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Also Published As

Publication number Publication date
EP1804451A2 (en) 2007-07-04
US20070153931A1 (en) 2007-07-05
KR20070070375A (en) 2007-07-04
KR100872043B1 (en) 2008-12-05
EP1804451B1 (en) 2019-01-02
US7792201B2 (en) 2010-09-07

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